1622 in science
# 1622 in science

The year 1622 in science and technology involved some significant events.

## Mathematics

* The slide rule is invented by William Oughtred (1574–1660), an English mathematician, and later becomes the calculating tool of choice until the electronic calculator takes over in the early 1970s.

## Physiology and medicine

* Gaspare Aselli discovers the lacteal vessels of the lymphatic system.
* Flemish anatomist Giulio Casserio publishes Nova anatomia in Frankfurt, containing clear copperplate engravings of the human anatomy.

## Technology

* February 22 – An English patent is granted for Dud Dudley's process for smelting iron ore with coke.

## Births

* January 28 – Adrien Auzout, French astronomer (died 1691)
* March 10 – Johann Rahn, Swiss mathematician (died 1676)
* April 5 – Vincenzo Viviani, Italian mathematician and scientist (died 1703)
* undated – Jean Pecquet, French anatomist (died 1674)

## Deaths

* January 23 – William Baffin, English explorer and navigator (born 1584)
* February 19 – Sir Henry Savile, English polymath and benefactor (born 1549)
* April 13 – Katharina Kepler, German healer and mother of Johannes Kepler (born 1546)
* May 15 – Petrus Plancius, Flemish cartographer and cosmographer (born 1552)
